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<font size="+1">Hi Csaba<br>
<br>
I have a 4 comport FDTI device which runs from a single USB
connection. It sets up 4 different COM ports on installation.<br>
<br>
Mine came for the Golden Dragon market in Hong Kong but I'm sure
you would find them on eBay etc<br>
<br>
Works fine on W10 unlike some other types<br>
<br>
GL 73 Fred<br>
G4BWP<br>
</font><br>
<div class="moz-cite-prefix">On 25/08/2016 13:37, HA3LN wrote:<br>
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<blockquote cite="mid:e806d459-46d7-404d-3992-229f8ede8f39@ha3ln.hu"
type="cite">
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Thanks a lot Bob for the quick response.<br>
I'll go with the 3 USB2serial 'coz the Folio 1040<br>
does not have even the chance to have real LPT.<br>
<br>
Thanks once again.<br>
<br>
73!<br>
Csaba<br>
<br>
<p><font size="-1"><font face="Tahoma"><font face="Tahoma"><br>
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<div class="moz-cite-prefix">On 2016-08-25 12:43, Bob Wilson, N6TV
wrote:<br>
</div>
<blockquote
cite="mid:CAOmNKGJwz4wPb9gww0kDxSokwfjojVHfoeT_-Brg6cMK15MmZw@mail.gmail.com"
type="cite">
<p dir="ltr">When pin 5 (or 9) is HIGH, stereo is ON (R1R2).
When it is LOW, stereo is OFF, and you get R1R1 or R2R2,
depending on thestate of pin 4, "headphones control."</p>
<p dir="ltr">But, this only works with real LPT ports.
USB-to-parallel (LPT) adapters only work with printers. They
<b>do not work</b> for CW keying, PTT, SO2R, etc. because
programs get no direct access to all the required pins.</p>
<p dir="ltr"><i>Instead, you may</i><i> use </i><b>USB-to-serial</b>
adapters and control all SO2R functions with the RTS (pin 7)
and DTR (pin 4) serial port pins instead of using the LPT
pins. But you will need <b>three serial ports</b> to
control: (1) CW & PTT, (2) Stereo & RX focus, and (3)
Active TX with serial ports, since the are only two pins per
serial port.</p>
<p dir="ltr">The pin function is defined by the COM port
settings dialog in Win-Test.</p>
<p dir="ltr">If your laptop has an ExpressCard slot, you can
add a real LPT port instead of using three USB serial ports.</p>
<p dir="ltr">73,<br>
Bob, N6TV</p>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Aug 25, 2016 3:13 AM, "HA3LN" <<a
moz-do-not-send="true" class="moz-txt-link-abbreviated"
href="mailto:list@ha3ln.hu">list@ha3ln.hu</a>> wrote:<br
type="attribution">
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">Hi,<br>
<br>
I've just started to play with the idea to scratch a so2r
box using LPT.<br>
I have USB to LPT converter as the laptop has USB ports
only.<br>
<br>
Active radio A/B, CW/PTT control is OK.<br>
Pin 4 takes care of switching between the RX A/B but<br>
how can I choose for the R1R2 stereo in the same time?<br>
I see pin 5/9 is responsible for stereo but how this
works?<br>
<br>
I read through the wiki several times but it's still not
clear.<br>
<br>
<br>
Thanks in advance.<br>
<br>
73!<br>
Csaba HA3LN<br>
<br>
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